Gatomon is a Cute Little DigiDestined Cat with green paw-like gloves. Gatomon used to work for many more Of Digimon and Pokémon army, but she Considered to be a heroic character when she met Angie Hinomoto and Nene Amano, While the Reinforcements came up with the Digimon and Pokémon Alliance.

Sometime after Apocalymon and his allies retreat to their sanctuaries, Gatomon appears and contacting all Digimon forces to make a great decision. He knew that he spoke to Angewomon to test as an enemy, Then later hit by Angewomon's attack, Celestial Arrow. When the test done, Gatomon jumps over Angewomon's shoulder and be friends about the Coming of the next tournament.

Before Zephyr Shields, Sailor Moon, Optimus Prime, Setsuna F. Seiei and Sora approach, Gatomon speaks to Angie Hinomoto to start a lesson. From combatants facing to Myotismon (calling "Myo" for short), Apocalymon and his enemies to Kimeramon, the last battle occured before joining forces. Gatomon began as a coach to begin the tournament as the good and evil Digimon forces fight each other.